K2NbF7 mP40 14

• F-K-Nb
• F-K-Ta
• F-In-Pb
• F-Np-Rb
• Cl-Cs-U
• structural properties
• optical properties
• optical spectra
• X-ray photoemission spectra
• ternary
• halogen
• non-disordered
• fluoride
• alkali
• monoclinic